predht.asym: An allometric model predicting an asymptote at large size.

In forestgeo/ctfs: Tools for the Analysis of Forest Dynamics

Description

An allometric model predicting an asymptote at large size, used in estimating tree height as a function of dbh.

The model uses 3 parameters, submitted as argument param. The matrix form of param allows a different set of parameters to be submitted for every species. The default parameters given in the function Chave.AGB assume dbh is in cm, as do all the biomass allometry functions.

dbh: Vector of dbh param: Either a vector of length 3, or a matrix of 3 columns; if the latter, there must be one row for each dbh.

Usage

predht.asym(dbh, param)

Arguments

dbh	Stem diameter, usually at breast height (see data dictionary at http://ctfs.si.edu/Public/DataDict/data_dict.php).

Examples

## Not run: 
htparam = c(41.7, .057, .748)
d = c(1, 2, 5, 10, 20, 50)
ht = predht.asym(dbh = d, param = htparam)

## End(Not run)

forestgeo/ctfs documentation built on May 3, 2019, 6:44 p.m.